Gaya APA
      Lucantoni, Peter, Lydia Kellas. ().
    English as a second language teacher's book .
    New York:
  Cambridge University Press.
  
Gaya Chicago
      Lucantoni, Peter, Lydia Kellas.
    English as a second language teacher's book.
    
    New York:
  Cambridge University Press,
  .
  Text.
  
Gaya MLA
      Lucantoni, Peter, Lydia Kellas.
    English as a second language teacher's book.
    
    New York:
  Cambridge University Press,
  .
  Text.
  
Gaya Turabian
      Lucantoni, Peter, Lydia Kellas.
    English as a second language teacher's book.
     
    New York:
  Cambridge University Press,
  .
  Print.